A top leader of Houthi militias in Yemen has died due to wounds he previously sustained, sources told al-Arabiya news website.
The UN Security Council considered al-Hakim among those who are obstructing the political peace process in Yemen.
Backed by Iran, the Houthis took control of the Yemeni capital of Sanaa in September through an armed uprising, causing the Yemeni government to flee to Aden after the group attempted to disband it in January.
Houthi forces began a military campaign to take Aden in April, forcing the government to flee the country to neighbouring ally Saudi Arabia where it has set up office in the capital, Riyadh.
The Saudi-led 12-country coalition began air strikes in Yemen against the Houthis in response to appeals from Hadi to “save Yemen” from Houthi aggression last March. The coalition has been conducting the air strikes on a daily basis.
A Saudi-proposed a five-day ceasefire started late on Tuesday. The ceasefire was announced after a visit by US secretary of state John Kerry to Riyadh to meet with Saudi king Salman.
The coalition accuses the Iran-backed rebels of violating the ceasefire for the second day in a row by carrying out military operations, including shelling Saudi troops in the border zone and targeting citizens' homes, according to a statement carried by the official Saudi Press Agency.
A Saudi-led coalition spokesperson warned that the five-day humanitarian truce may not last long, due to allegedly frequent breaching of the agreement by the Houthis.